Webasto Thermo 90 ST Operating Instructions Manual - Note
NOTE
If the heater is activated by the switch, the types of malfunctions are indicated by
coded flashing signals via the operation indicator light during the run-on time of
the heater.
After five short signals, count the long flashes:
The flashing pulses match the number in the table below.
F 00/--
(only five short flashing pulses)
Heater lock-out or control unit defective,
Unlocking only possible by specialised workshop
F 01
No start (after 2 starting attempts)
F 02
Flame failure
F 03
Undervoltage or overvoltage
F 04
Premature flame detection
F 05
Flame monitor interruption or
flame monitor short circuit
F 06
Temperature sensor interruption or
temperature sensor short-circuit
F 07
Metering pump interruption or
metering pump short-circuit
F 08
Fan motor interruption or
fan motor short-circuit or
incorrect fan motor speed
F 09
Glow plug interruption or
glow plug short circuit
F 10
Overheating
F 11
Circulation pump interruption or
circulation pump short circuit
Fault Codes on the Display of the Combination or Standard
Digital Timer
Webasto Thermo & Comfort SE
Postfach 1410
82199 Gilching
Germany
Visitors' address:
Friedrichshafener Str. 9
82205 Gilching
Germany
Internet: www.webasto.com
The telephone number of each country can be found in the
Webasto service center leaflet or the website of the respective
Webasto representative of your country.
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